"Compared with the mass of a uranium atom undergoing fission, the combined masses of the products after fission are",less,more,the same,zero,A
Things that are equivalent according to the equivalence principle are,space and time.,a traveling twin and a stay-at-home twin.,gravity and acceleration.,mass and energy.,C
Colors in a soap bubble result from light,converted to a different frequency,deflection,interference,polarization,C
A model airplane flies slower when flying into the wind and faster with wind at its back. When launched at right angles to the wind a cross wind its groundspeed compared with flying in still air is,the same,greater,less,either greater or less depending on wind speed,B
Which of these three elements has the most mass per nucleon?,Hydrogen,Iron,Uranium,Same in each,A
